{"id":10759,"date":"2024-03-11T12:24:55","date_gmt":"2024-03-11T12:24:55","guid":{"rendered":"https:\/\/prwatech.in\/blog\/?p=10759"},"modified":"2024-03-11T12:26:07","modified_gmt":"2024-03-11T12:26:07","slug":"high-availability-fault-tolerance-and-disaster-recovery","status":"publish","type":"post","link":"https:\/\/prwatech.in\/blog\/azure\/module2\/high-availability-fault-tolerance-and-disaster-recovery\/","title":{"rendered":"High availability, Fault tolerance, and Disaster recovery"},"content":{"rendered":"<h2>High availability, Fault tolerance, and Disaster recovery<\/h2>\n<p>&nbsp;<\/p>\n<h3><strong>Common Goal: <\/strong>High availability, Fault tolerance, and Disaster recovery<\/h3>\n<p><strong>\u00a0<\/strong><\/p>\n<ul>\n<li><strong>Goal:<\/strong> The user continues to access the application, even when things go wrong.<\/li>\n<li>Common reasons for loss of availability<\/li>\n<\/ul>\n<ol>\n<li>Network outage<\/li>\n<li>Application failure<\/li>\n<li>System outage<\/li>\n<li>Power outage<\/li>\n<li>Catastrophic disasters (Earthquakes, tsunamis, floods, tornados, etc.)<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<h3><b>\u00a0 Disaster Recovery\u00a0<\/b><\/h3>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-10760\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2024\/03\/module-2-1-1-300x138.png\" alt=\"\" width=\"635\" height=\"292\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2024\/03\/module-2-1-1-300x138.png 300w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2024\/03\/module-2-1-1-768x354.png 768w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2024\/03\/module-2-1-1.png 934w\" sizes=\"auto, (max-width: 635px) 100vw, 635px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3><b>High <\/b><b>Availability and Fault Toleranc<\/b><b>e<\/b><\/h3>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-10761\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2024\/03\/module-2-1-2-300x167.png\" alt=\"\" width=\"529\" height=\"294\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2024\/03\/module-2-1-2-300x167.png 300w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2024\/03\/module-2-1-2.png 674w\" sizes=\"auto, (max-width: 529px) 100vw, 529px\" \/><\/p>\n<p>\u2b9a Protect against data center, server, network and storage subsystem failures to keep your business running without downtime.<\/p>\n<p>\u2b9a Highly available systems are reliable in the sense that they continue operating even when critical components fail.<\/p>\n<p>\u2b9a They are also resilient, meaning that they can simply handle failure without service disruption or data loss, and seamlessly recover from such failure.<\/p>\n<p>\u2b9a Azure provide high availability features such as redundancy, load balancing, auto-scaling and provisioning across Availability Zones (AZ), representing isolated parts of an Azure data center.<\/p>\n<p>&nbsp;<\/p>\n<h3><b>\u00a0 High Availability\u00a0<\/b><\/h3>\n<p>&nbsp;<\/p>\n<ol>\n<li><b>Service Level Agreement (SLA) <\/b>guarantees a certain level of availability as a percentage<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-10762\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2024\/03\/Module-2-1-3-300x126.png\" alt=\"\" width=\"591\" height=\"248\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2024\/03\/Module-2-1-3-300x126.png 300w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2024\/03\/Module-2-1-3.png 734w\" sizes=\"auto, (max-width: 591px) 100vw, 591px\" \/><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>High availability, Fault tolerance, and Disaster recovery &nbsp; Common Goal: High availability, Fault tolerance, and Disaster recovery \u00a0 Goal: The user continues to access the application, even when things go wrong. Common reasons for loss of availability Network outage Application failure System outage Power outage Catastrophic disasters (Earthquakes, tsunamis, floods, tornados, etc.) &nbsp; \u00a0 Disaster [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1731],"tags":[],"class_list":["post-10759","post","type-post","status-publish","format-standard","hentry","category-module2"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>High availability, Fault tolerance, and Disaster recovery - Prwatech<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"High availability, Fault tolerance, and Disaster recovery - Prwatech\" \/>\n<meta property=\"og:description\" content=\"High availability, Fault tolerance, and Disaster recovery &nbsp; Common Goal: High availability, Fault tolerance, and Disaster recovery \u00a0 Goal: The user continues to access the application, even when things go wrong. 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